Code of Practice for the Electricity (Wiring) Regulations - 2009 Edition

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IEC 60947 Low-voltage switchgear and controlgear IEC 60950 Information technology equipment - Safety IEC 61008 Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) IEC 61009 Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs) IEC 61084 Cable trunking and ducting systems for electrical installations IEC 61140 Protection against electric shock - Common aspects for installation and equipment IEC 61386 Conduit systems for cable management IEC 61643 Low-voltage surge protective devices IEC 62305 Protection against lightning IEEE 519 IEEE recommended practices and requirements for harmonic control in electrical power systems BS EN 50085 Cable trunking systems and cable ducting systems for electrical installations BS EN 50266 Common test methods for cables under fire conditions - Test for vertical flame spread of BS EN 50310 vertically-mounted bunched wires or cables Application of equipotential bonding and earthing in buildings with information technology equipment BS EN 50174 Information technology - Cabling installation BS EN 60332-1-2 Tests on electric and optical fibre cables under fire conditions - Test for vertical flame propagation for a single insulated wire or cable - Procedure for 1 kW premixed flame BS EN 60335 Household and similar electrical appliances - Safety BS EN 60423 Conduit systems for cable management - Outside diameters of conduits for electrical installations and threads for conduits and fittings BS EN 60439 Low-voltage switchgear and controlgear assemblies 314
BS EN 60598 Luminaires BS EN 60669 Switches for household and similar fixed electrical installations BS EN 60947-1 Low - voltage switchgear and controlgear - General rules BS EN 60947-2 Low-voltage switchgear and controlgear - Circuitbreakers BS EN 60947-3 Low-voltage switchgear and controlgear - Switches, disconnectors, switch-disconnectors and fuse- BS EN 60947-4 combination units Low-voltage switchgear and controlgear - Contactors and motor-starters - Electromechanical contactors and motor-starters BS EN 61008 Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) BS EN 61009 Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBO’s) BS EN 61034-2 Measurement of smoke density of cables burning under defined conditions - Test procedure and requirements BS EN 61386 Conduit systems for cable management BS EN 61534 Powertrack systems BS EN 61558 Safety of power transformers, power supplies, reactors and similar products BS EN 61558-2-5 Safety of power transformers, power supply units and similar - Particular requirements for shaver BS EN 62305 transformers and shaver supply units Protection against lightning BS 31 Specification - Steel conduit and fittings for electrical wiring BS 88 Low-voltage fuses / Cartridge fuses for voltages up to and including 1000V a.c. and 1500V d.c. BS 88 Part 2 Low-voltage fuses. Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application). Examples of standardized systems of fuses A to I 315
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CODE OF PRACTICE FOR THE ELECTRICIT
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Page 6G Final Circuits Using 16A In
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Page 17. Display of Labels and Noti
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Page Appendices 208 1. Prescribed R
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Code 1 INTRODUCTION PART I This Cod
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‘cable trunking’ means a manufa
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‘powertrack system’ means an as
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Code 3 APPLICATION 3A General Appli
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Code 4 GENERAL SAFETY REQUIREMENTS
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warning notices and the placing of
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4E Working Space (a) A minimum clea
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Additional lighting should be provi
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(b) Work procedure for High Voltage
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(ii) Keep hands away from any circu
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Code 5 SEGREGATION OF CIRCUIT CATEG
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(i) A minimum horizontal or vertica
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Code 6 CIRCUIT ARRANGEMENT 6A Divis
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(2) Control Each circuit should be
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(4) Permanently connected equipment
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Type of Circuit A1 Ring A2 Radial A
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Code 7 CURRENT DEMAND 7A Current De
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Purpose of Conductors or Switchgear
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Code 8 ISOLATION AND SWITCHING 8A P
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(iv) luminaires (lamp replacement a
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(3) Devices for switching off for m
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Code 9 OVERCURRENT PROTECTIVE DEVIC
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Overload protective devices may hav
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Table 9(1) Limiting Final Temperatu
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Table 9(4) Classification of MCB to
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Code 10 NEUTRAL CONDUCTOR PROTECTIV
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Code 11 EARTH LEAKAGE AND EARTH FAU
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(b) Subject to subparagraph (a) abo
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(Note: 1. An extraneous conductive
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(d ) Where a residual current devic
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(c) Values of k for protective cond
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Table 11(4) Minimum Cross-sectional
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Table 11(11) Maximum Earth Fault Lo
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Code 12 EARTHING ARRANGEMENT 12A Ge
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(4) Plate electrode Plate electrode
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Code 13 CONDUCTORS, JOINTS AND CONN
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(a) the ambient temperature does no
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(2) Identification of cable cores (
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Code 14 WIRING INSTALLATION ENCLOSU
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(b) Flexible steel conduits should
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14E Cable Capacity of Enclosures (1
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Table 14(2) Cable Factors and Condu
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Table 14(4) Cable Factors and Trunk
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Code 15 ADVERSE CONDITIONS INSTALLA
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(c) Where cables are to be connecte
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(d ) Electrical equipment and wirin
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(b) There should be adequate means
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Table 15(4) Selection of Electrical
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Code 16 OVERHEAD LINE INSTALLATIONS
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(2) Any point of the span The condu
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Code 17 DISPLAY OF LABELS AND NOTIC
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Code 18 ALTERATIONS AND ADDITIONS 1
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Code 19 FIRST INSPECTION, TESTING A
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Code 20 PERIODIC INSPECTION, TESTIN
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(b) Examples of the above are dange
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Code 21 PROCEDURES FOR INSPECTION,
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21B Testing of Low Voltage Installa
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(6) Polarity (a) A test of polarity
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(d ) Secondary Injection Test (i) T
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will have affected the results of t
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Code 22 MAKING AND KEEPING OF RECOR
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Checklists Requirements to be Used
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Code 23 & Code 24 (Reserved for Fut
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Part II Code 25 GENERAL WORKMANSHIP
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equipment should be suitable for th
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(2) Installation of PVC insulated,
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(c) Where cold compound with plasti
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(b) Earth continuity across joints
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Table 25(2) Spacing of Supports for
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166
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Code 26 REQUIREMENTS FOR SPECIFIC I
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Code 26 REQUIREMENTS FOR SPECIFIC I
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(iii) controls and switches of wate
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(vi) Except as provided by (vii) wh
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(b) Facilities should be incorporat
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(3) Starting facilities of electric
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than the product of the total stead
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(5) Transformers (a) Every transfor
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(b) Electrical apparatus and wiring
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(f ) Supply from generator set Wher
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manufacturer’s instructions. Othe
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• SELV, the source for SELV being
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protected by an RCD having the char
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(2) Basic protection and fault prot
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plug. The permanent connection to t
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prevent electric shock to electrica
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Table 26(1) Recommended Number of S
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APPENDICES 1. Prescribed Requiremen
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(d ) The spacing of the socket cont
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diameter of the clamping screw and
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contact with appropriate socket con
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(ii) between live parts and any oth
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(1) General Appendix 3 Prescribed R
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(d ) An earthing terminal should be
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Appendix 4 Prescribed Requirements
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(5) Screws and connections (a) Scre
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Appendix 5 Correction Factors for S
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(3) Correction factors for cables e
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Appendix 6 Current Carrying Capacit
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TABLE A6(1) Single-core PVC insulat
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TABLE A6(2) Multicore PVC insulated
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TABLE A6(3) Single-core armoured PV
Page 264 and 265: TABLE A6(4) Multicore armoured PVC
Page 266 and 267: TABLE A6(5) Single core XLPE insula
Page 268 and 269: TABLE A6(6) Multicore XLPE insulate
Page 270 and 271: TABLE A6(7) Single-core XLPE insula
Page 272 and 273: TABLE A6(8) Multicore armoured XLPE
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Page 280 and 281: 280 Contactor Main make contact of
Page 282 and 283: 282 Junction, connection point
Page 284 and 285: No. Symbol Description 45. 46. 47.
Page 286 and 287: No. Symbol Description 68. 69. 70.
Page 288 and 289: Appendix 10 Degree of Protection Pr
Page 290 and 291: Appendix 11 Forms of Internal Separ
Page 292: Appendix 12 Worked Examples for App
Page 296 and 297: Appendix 13 A) Schedule of Test Res
Page 298 and 299: (iii) All joints of metal conduit o
Page 303 and 304: Checklist No. 4—Additional Items
Page 305 and 306: (iv) Suitable stay wires installed
Page 307 and 308: Tested by/Date (N/A if not applicab
Page 309 and 310: (vii) Protective conductor up to an
Page 311: Checklist No. 5—Items for H.V. In
Page 316 and 317: BS 88 Part 6 Cartridge fuses for vo
Page 318 and 319: References may be made to the follo
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Page 326 and 327: (3) Precautions In the new colour c
Page 328 and 329: 5.2 Single-phase installation Exten
Page 330 and 331: 5.3 Three-phase installation Extens
Page 332 and 333: enclosure in conduit and trunking i
Page 334 and 335: Double insulation Duct Earth fault
Page 336 and 337: Joints and termination Labels bondi
Page 338: Socket outlets general installation
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Code of Practice for the Electricity (Wiring) Regulations - 2009 Edition

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